吃掉无保护的王（d2） (e2)
li-0E3g5命名标签 (格·N)战术主题
悬子：对方有棋子无人保护——吃掉它。
解救棋子：你的棋子正受攻击——找到最佳解救方法。
难度2319 ShuffleRating——专家水平——很少有人一次解出。
白方走棋——找出最佳续着
How to recognize this tactic
A hanging piece is one that is attacked and not defended, or defended too few times. Count attackers against defenders on each enemy unit; where attackers win, take it — often with an in-between move or a check to gain the extra tempo.
Here the task is defensive: one of your pieces is under attack and must be rescued without losing more. Look for a move that saves it with tempo — a counter-check, an equal counter-attack or an interposition — rather than a passive retreat.
General method: before you move, list the forcing candidates — every check, every capture, every direct threat — and calculate those first. The solution to a tactic is almost always among them.
棋盘上的局面
白方：王 e2, 象 f7, 兵 g3 h4。
黑方：王 e5, 象 d2, 兵 d5 f5 f6。
棋盘上有4枚白棋和5枚黑棋；该题局面出现在第60回合之后。
The position in numbers
Black are ahead by 1 points of material (5 against 6; pawn = 1, knight and bishop = 3, rook = 5, queen = 9) — the tactic has to convert or outweigh that.
The white king stands on e2, the black king on e5.
It is White to move on move 60, with 14 legal replies to weigh — only the line that keeps the advantage solves the puzzle.
White keeps 2 pawns, Black 3. Files fully open (no pawns of either colour): a, b, c, e — natural highways for the rooks and queen. Half-open for White: d, f.
The White king has 6 empty squares to step to right now — the fewer they are, the closer a mating net.
解答与讲解
主要变着
60. Kxd2 f4 61. g4
为何奏效
- 好棋！王到d2保持压力（+6.3）。
- 好棋！兵到g4保持压力（+6.5）。
- 你赢得一子——象。
- 若改走f4，则g4，你赢得象。
Move by move
- 60. Kxd2 — 王 to d2 (capture)
- f4 — 兵 to f4
- 61. g4 — 兵 to g4
本题的题型
制胜一击
找到那记强制得子的妙击。
制胜一击：强制赢得子力，却不归入任何单一的教科书主题。通用的战术配方在此适用：找出无保护的棋子、站位别扭的国王、超载的线路。按力度顺序枚举强制着法：将军、吃子、威胁——绝大多数组合正是从其中之一开始。不要凭感觉评估：把具体变化算到结果确凿无疑为止。
轻子残局
象与马的对决——几何决定胜负。
轻子残局：盘上只剩象、马和兵，几何决定一切。象喜欢开放的棋盘和两翼作战，马喜欢固定的兵和支撑点。看看兵都站在什么颜色的格子上，马来不来得及赶到关键区域。实用建议：对付马就把战火引向两翼——短腿跑不过来。
救子
被攻击的子不但能救，还能顺手赚一笔。
救子：你的棋子被攻击，任务是别白白送掉它。办法有几种：带节奏地撤退、加以保护、垫挡攻击，或制造更凶的对攻威胁。机械后撤之前，先找带反击的撤退——既救了子又赚了时间。典型错误是惊慌失措逃到随便一个格子，结果棋子又被抓住。
来源
源自 Lichess 题库（CC0）。
题包 015
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